Three thieves. Book five, Pirates of the Silver Coast

Summary/Review: "The Island of Astaroth--"The Dark Island"--is a legend among sailors. It's rumored a demon lives there, and that it holds more riches than anyone could fathom. But no one has ever laid eyes on it. Certain that her long-lost brother is being held on the Dark Island against his will, Dessa hires a ragtag group of smugglers to take her there aboard their ship. But it's a journey fraught with danger and treachery, and the outcome seems less and less certain with each passing moment..."--Back cover.